Effect of ruminally protected lysine on growth and nitrogen balance of grain-finished beef cattle fed diets of decreasing protein concentration
Donald S Herzog, Janghoon Jo, Daiki Nakajima, Kazuki Nakagawa, Rodrigo de Nazare Santos Torres, Lester J Nolasco, Jon P Schoonmaker · 2026
Read Effect of ruminally protected lysine on growth and nitrogen balance of grain-finished beef cattle fed diets of decreasing protein concentration by Donald S Herzog, Janghoon Jo, Daiki Nakajima, Kazuki Nakagawa, Rodrigo de Nazare Santos Torres, Lester J Nolasco, Jon P Schoonmaker (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13271382.txt.
Description
Donald S. Herzog is lead author of a 2026 cattle feeding study on adding rumen-protected lysine, an essential protein building block shielded from stomach digestion, to lower-protein grain diets for beef cattle. Lower protein diets could cut costs and nitrogen waste, but only if growth does not suffer.
Two experiments tested a standard 14.4 percent protein diet against reduced diets at 12.4 and 11.6 percent protein with lysine added. Ninety steers showed no diet effect on weight gain, feed intake, efficiency, or most carcass traits, though the lowest-protein group had a lower dressing percentage. Six heifers in a rotation design were used to measure nitrogen balance, tracking urine and manure output.
Catalog record
| CREATOR | Donald S Herzog, Janghoon Jo, Daiki Nakajima, Kazuki Nakagawa, Rodrigo de Nazare Santos Torres, Lester J Nolasco, Jon P Schoonmaker |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 37589 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |